• Merrill Franck heeft een update geplaatst 3 maanden, 1 week geleden

    To improve understand how ultraviolet rays purify water, allow us to try to do a comparison to sunlight. The sun projects ultraviolet rays on earth (after being absorbed through the ozone layer). These rays kill bacteria, viruses, fungi, yeasts, molds, and mites via a flight and water, as well as on surfaces. UV radiation does about the same…[Lees meer]

  • Merrill Franck is geregistreerd lid geworden 3 maanden, 1 week geleden

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